Which of the following is not a reason why Neurospora is an ideal organism to study the effects of
genetic mutations?
a. Neurospora is easy to grow.
b. Neurospora grows as a haploid organism.
c. Neurospora manufactures all its necessary molecules when grown on a minimal medium.
d. A mutant Neurospora strain that cannot make a particular amino acid can still grow if that
amino acid is added to the growth medium.
e. Neurospora contains homologous chromosomes that are easily viewed with a light
microscope
E
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FtsZ proteins in bacteria are most similar to which molecule in eukaryotic cells?
a. cohesin b. moesin c. tubulin d. integrin
Jawless fishes were the first vertebrates to leave fossil evidence during the _____ period.
A. Cambrian B. Devonian C. Carboniferous D. Silurian E. Ordovician
Experience with dog breeding has taught geneticists ________
A) that, given enough time, any desired trait can be bred into dogs B) that purebred dogs have offspring with qualities identical to the parents, because all purebred dogs are alike genetically C) that, while physical traits can be molded through artificial selection, behavioral traits cannot D) that geographically isolated groups of dogs may be selected for quite different traits, resulting in a different dog breed
Which of the following is NOT correct?
Select one: a. xylem—conducts water up from the soil b. phloem—transports organic nutrients c. vascular tissue—consists of xylem and phloem d. vascular plants—sporophyte is dominant e. sporophyte—haploid